diff --git a/app/src/main/aidl/io/nekohasekai/sagernet/aidl/ISagerNetServiceCallback.aidl b/app/src/main/aidl/io/nekohasekai/sagernet/aidl/ISagerNetServiceCallback.aidl
index 3b0a02d..f0382ac 100644
--- a/app/src/main/aidl/io/nekohasekai/sagernet/aidl/ISagerNetServiceCallback.aidl
+++ b/app/src/main/aidl/io/nekohasekai/sagernet/aidl/ISagerNetServiceCallback.aidl
@@ -9,5 +9,4 @@ oneway interface ISagerNetServiceCallback {
   void routeAlert(int type, String routeName);
   void cbSpeedUpdate(in SpeedDisplayData stats);
   void cbTrafficUpdate(in TrafficData stats);
-  void cbLogUpdate(String str);
 }
diff --git a/app/src/main/java/io/nekohasekai/sagernet/SagerNet.kt b/app/src/main/java/io/nekohasekai/sagernet/SagerNet.kt
index b8cc86b..c082ec3 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/SagerNet.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/SagerNet.kt
@@ -262,20 +262,6 @@ class SagerNet : Application(),
 
     // nb4a interface
 
-    override fun write(p: ByteArray): Long {
-        // NB4AGuiLogWriter
-        if (isBgProcess) {
-            runOnDefaultDispatcher {
-                DataStore.baseService?.data?.binder?.broadcast {
-                    it.cbLogUpdate(String(p))
-                }
-            }
-        } else {
-            DataStore.postLogListener?.let { it(String(p)) }
-        }
-        return p.size.toLong()
-    }
-
     override fun useOfficialAssets(): Boolean {
         return DataStore.rulesProvider == 0
     }
diff --git a/app/src/main/java/io/nekohasekai/sagernet/bg/SagerConnection.kt b/app/src/main/java/io/nekohasekai/sagernet/bg/SagerConnection.kt
index 0f40d4e..f8fa514 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/bg/SagerConnection.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/bg/SagerConnection.kt
@@ -96,14 +96,6 @@ class SagerConnection(
             }
         }
 
-        override fun cbLogUpdate(str: String?) {
-            DataStore.postLogListener?.let {
-                if (str != null) {
-                    it(str)
-                }
-            }
-        }
-
     }
 
     private var binder: IBinder? = null
diff --git a/app/src/main/java/io/nekohasekai/sagernet/bg/proto/ProxyInstance.kt b/app/src/main/java/io/nekohasekai/sagernet/bg/proto/ProxyInstance.kt
index ff563a5..81178fd 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/bg/proto/ProxyInstance.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/bg/proto/ProxyInstance.kt
@@ -4,7 +4,7 @@ import io.nekohasekai.sagernet.BuildConfig
 import io.nekohasekai.sagernet.bg.BaseService
 import io.nekohasekai.sagernet.database.ProxyEntity
 import io.nekohasekai.sagernet.ktx.Logs
-import io.nekohasekai.sagernet.ktx.runOnIoDispatcher
+import io.nekohasekai.sagernet.ktx.runOnDefaultDispatcher
 import kotlinx.coroutines.runBlocking
 import moe.matsuri.nb4a.utils.JavaUtil
 
@@ -42,7 +42,7 @@ class ProxyInstance(profile: ProxyEntity, var service: BaseService.Interface? =
     override fun launch() {
         box.setAsMain()
         super.launch()
-        runOnIoDispatcher {
+        runOnDefaultDispatcher {
             looper = service?.let { TrafficLooper(it.data, this) }
             looper?.start()
         }
diff --git a/app/src/main/java/io/nekohasekai/sagernet/bg/proto/TrafficUpdater.kt b/app/src/main/java/io/nekohasekai/sagernet/bg/proto/TrafficUpdater.kt
index ff35c79..d18adb3 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/bg/proto/TrafficUpdater.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/bg/proto/TrafficUpdater.kt
@@ -1,7 +1,5 @@
 package io.nekohasekai.sagernet.bg.proto
 
-import io.nekohasekai.sagernet.ktx.onIoDispatcher
-
 class TrafficUpdater(
     private val box: libcore.BoxInstance,
     val items: List<TrafficLooperData>, // contain "bypass"
@@ -28,12 +26,8 @@ class TrafficUpdater(
         }
 
         // query
-        var tx = 0L
-        var rx = 0L
-        onIoDispatcher {
-            tx = box.queryStats(item.tag, "uplink")
-            rx = box.queryStats(item.tag, "downlink")
-        }
+        val tx = box.queryStats(item.tag, "uplink")
+        val rx = box.queryStats(item.tag, "downlink")
 
         // add diff
         item.rx += rx
diff --git a/app/src/main/java/io/nekohasekai/sagernet/database/DataStore.kt b/app/src/main/java/io/nekohasekai/sagernet/database/DataStore.kt
index 985f82d..dbb74a0 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/database/DataStore.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/database/DataStore.kt
@@ -30,9 +30,6 @@ object DataStore : OnPreferenceDataStoreChangeListener {
     var vpnService: VpnService? = null
     var baseService: BaseService.Interface? = null
 
-    // only in GUI process
-    var postLogListener: ((String) -> Unit)? = null
-
     fun currentGroupId(): Long {
         val currentSelected = configurationStore.getLong(Key.PROFILE_GROUP, -1)
         if (currentSelected > 0L) return currentSelected
diff --git a/app/src/main/java/io/nekohasekai/sagernet/fmt/ConfigBuilder.kt b/app/src/main/java/io/nekohasekai/sagernet/fmt/ConfigBuilder.kt
index 8279641..02ffe5d 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/fmt/ConfigBuilder.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/fmt/ConfigBuilder.kt
@@ -695,7 +695,7 @@ fun buildConfig(
                 dns.rules.add(
                     DNSRule_DefaultOptions().apply {
                         user_id = uidListDNSRemote.toHashSet().toList()
-                        server = "dns-remote"
+                        server = if (useFakeDns) "dns-fake" else "dns-remote"
                     }
                 )
             }
@@ -703,7 +703,7 @@ fun buildConfig(
                 dns.rules.add(
                     DNSRule_DefaultOptions().apply {
                         makeSingBoxRule(domainListDNSRemote.toHashSet().toList())
-                        server = "dns-remote"
+                        server = if (useFakeDns) "dns-fake" else "dns-remote"
                     }
                 )
             }
@@ -775,7 +775,7 @@ fun buildConfig(
                 tag = "dns-fake"
                 strategy = "ipv4_only"
             })
-            dns.rules.add(DNSRule_DefaultOptions().apply {
+            dns.rules.add(0, DNSRule_DefaultOptions().apply {
                 auth_user = listOf("fakedns")
                 server = "dns-remote"
                 disable_cache = true
diff --git a/app/src/main/java/io/nekohasekai/sagernet/ui/LogcatFragment.kt b/app/src/main/java/io/nekohasekai/sagernet/ui/LogcatFragment.kt
index 18b1583..d2fd8a9 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/ui/LogcatFragment.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/ui/LogcatFragment.kt
@@ -12,7 +12,6 @@ import android.view.View
 import android.widget.ScrollView
 import androidx.appcompat.widget.Toolbar
 import io.nekohasekai.sagernet.R
-import io.nekohasekai.sagernet.database.DataStore
 import io.nekohasekai.sagernet.databinding.LayoutLogcatBinding
 import io.nekohasekai.sagernet.ktx.*
 import libcore.Libcore
@@ -38,23 +37,7 @@ class LogcatFragment : ToolbarFragment(R.layout.layout_logcat),
         }
 
         reloadSession()
-
-        DataStore.postLogListener = {
-            runOnMainDispatcher {
-                val color = getColorForLine(it)
-                val span = SpannableString(it)
-                span.setSpan(color, 0, it.length, SPAN_EXCLUSIVE_EXCLUSIVE)
-                binding.textview.append(span)
-                binding.scroolview.post {
-                    binding.scroolview.fullScroll(ScrollView.FOCUS_DOWN)
-                }
-            }
-        }
-    }
-
-    override fun onDestroy() {
-        DataStore.postLogListener = null
-        super.onDestroy()
+        // TODO new logcat
     }
 
     private fun getColorForLine(line: String): ForegroundColorSpan {
diff --git a/app/src/main/java/moe/matsuri/nb4a/DNS.kt b/app/src/main/java/moe/matsuri/nb4a/DNS.kt
index cea7162..d2c1e48 100644
--- a/app/src/main/java/moe/matsuri/nb4a/DNS.kt
+++ b/app/src/main/java/moe/matsuri/nb4a/DNS.kt
@@ -75,8 +75,8 @@ object DNS {
                 domain.plusAssign(it)
             }
         }
-        if (ip_cidr?.isEmpty() == true) geosite = null
-        if (geoip?.isEmpty() == true) geosite = null
+        if (ip_cidr?.isEmpty() == true) ip_cidr = null
+        if (geoip?.isEmpty() == true) geoip = null
         if (geosite?.isEmpty() == true) geosite = null
         if (domain?.isEmpty() == true) domain = null
         if (domain_suffix?.isEmpty() == true) domain_suffix = null
diff --git a/libcore/date.go b/libcore/date.go
index c040fb4..063a746 100644
--- a/libcore/date.go
+++ b/libcore/date.go
@@ -7,7 +7,7 @@ import (
 var outdated string
 
 func GetBuildTime() int64 {
-	buildDate := "20230321"
+	buildDate := "20230327"
 	buildTime, _ := time.Parse("20060102", buildDate)
 	return buildTime.Unix()
 }
diff --git a/libcore/go.mod b/libcore/go.mod
index e67f484..75a7dc1 100644
--- a/libcore/go.mod
+++ b/libcore/go.mod
@@ -5,12 +5,12 @@ go 1.18
 require (
 	github.com/codeclysm/extract v2.2.0+incompatible
 	github.com/matsuridayo/libneko v0.0.0-20230315005352-9d7e3f3a79d1
-	github.com/matsuridayo/sing-box-extra v0.0.0-20230325060026-3d1536ef0aa0
+	github.com/matsuridayo/sing-box-extra v0.0.0-20230327081452-742054d97340
 	github.com/miekg/dns v1.1.52
-	github.com/sagernet/sing v0.2.1-0.20230323071235-f8038854d286
-	github.com/sagernet/sing-box v1.2.0
+	github.com/sagernet/sing v0.2.1
+	github.com/sagernet/sing-box v1.2.1
 	github.com/sagernet/sing-dns v0.1.4
-	github.com/sagernet/sing-tun v0.1.3-0.20230323073325-35d565af6515
+	github.com/sagernet/sing-tun v0.1.4-0.20230326080954-8848c0e4cbab
 	github.com/ulikunitz/xz v0.5.10
 	golang.org/x/mobile v0.0.0-20220722155234-aaac322e2105
 )
diff --git a/libcore/go.sum b/libcore/go.sum
index 26ae79b..caf4327 100644
--- a/libcore/go.sum
+++ b/libcore/go.sum
@@ -73,8 +73,8 @@ github.com/logrusorgru/aurora v2.0.3+incompatible h1:tOpm7WcpBTn4fjmVfgpQq0EfczG
 github.com/logrusorgru/aurora v2.0.3+incompatible/go.mod h1:7rIyQOR62GCctdiQpZ/zOJlFyk6y+94wXzv6RNZgaR4=
 github.com/matsuridayo/libneko v0.0.0-20230315005352-9d7e3f3a79d1 h1:+FflyEuq2hn++MENFuT1/qFHz0KITKK/F6ZHxs23mrg=
 github.com/matsuridayo/libneko v0.0.0-20230315005352-9d7e3f3a79d1/go.mod h1:IRO07Queptz/rGFvEW+3Hmwpx7MCup6WiDs4p5jMt4g=
-github.com/matsuridayo/sing-box-extra v0.0.0-20230325060026-3d1536ef0aa0 h1:bYySHCBsxrX1f11PsKRg80pT5NHwLukAebOJnygqQFc=
-github.com/matsuridayo/sing-box-extra v0.0.0-20230325060026-3d1536ef0aa0/go.mod h1:nIAxi4Ym/52BS2FTBS6s4xejViHryitMO5MuSKoa34M=
+github.com/matsuridayo/sing-box-extra v0.0.0-20230327081452-742054d97340 h1:TzuCH2vb6eo7BxZ+eMylKKrUGvmamDRCptBLtQSaSgQ=
+github.com/matsuridayo/sing-box-extra v0.0.0-20230327081452-742054d97340/go.mod h1:E3oztgtA++oubrIDHoLV9BO9/2C8p8BNkbBZRnho9lI=
 github.com/mholt/acmez v1.1.0 h1:IQ9CGHKOHokorxnffsqDvmmE30mDenO1lptYZ1AYkHY=
 github.com/mholt/acmez v1.1.0/go.mod h1:zwo5+fbLLTowAX8o8ETfQzbDtwGEXnPhkmGdKIP+bgs=
 github.com/miekg/dns v1.1.52 h1:Bmlc/qsNNULOe6bpXcUTsuOajd0DzRHwup6D9k1An0c=
@@ -113,18 +113,18 @@ github.com/sagernet/reality v0.0.0-20230323230523-5fa25e693e7f h1:plVtFF9NVw5Py4
 github.com/sagernet/reality v0.0.0-20230323230523-5fa25e693e7f/go.mod h1:B8lp4WkQ1PwNnrVMM6KyuFR20pU8jYBD+A4EhJovEXU=
 github.com/sagernet/sing v0.0.0-20220817130738-ce854cda8522/go.mod h1:QVsS5L/ZA2Q5UhQwLrn0Trw+msNd/NPGEhBKR/ioWiY=
 github.com/sagernet/sing v0.1.8/go.mod h1:jt1w2u7lJQFFSGLiRrRIs5YWmx4kAPfWuOejuDW9qMk=
-github.com/sagernet/sing v0.2.1-0.20230323071235-f8038854d286 h1:0Td2b5l1KgrdlOnbRWgFFWsyb0TLoq/tP6j9Lut4JN0=
-github.com/sagernet/sing v0.2.1-0.20230323071235-f8038854d286/go.mod h1:9uHswk2hITw8leDbiLS/xn0t9nzBcbePxzm9PJhwdlw=
-github.com/sagernet/sing-box v1.2.0 h1:XFCvwJ4dKP65KeucGVs2zq0GPm0qtuoe1u5TLwsjh3s=
-github.com/sagernet/sing-box v1.2.0/go.mod h1:7NuAB1wmWMMSCJnOUFnTk69024LeZQLL+xJ9IpKfjQE=
+github.com/sagernet/sing v0.2.1 h1:r0STYeyfKBBtoAHsBtW1dQonxG+3Qidde7/1VAMhdn8=
+github.com/sagernet/sing v0.2.1/go.mod h1:9uHswk2hITw8leDbiLS/xn0t9nzBcbePxzm9PJhwdlw=
+github.com/sagernet/sing-box v1.2.1 h1:87VHHfEH5qW0ZbHv//HkRWb/W4wsak2rqfaoxLCnjpg=
+github.com/sagernet/sing-box v1.2.1/go.mod h1:htuHAvGxwjL1RdbdR1mlFCd4d+b8fCXs2JqFasnJnGU=
 github.com/sagernet/sing-dns v0.1.4 h1:7VxgeoSCiiazDSaXXQVcvrTBxFpOePPq/4XdgnUDN+0=
 github.com/sagernet/sing-dns v0.1.4/go.mod h1:1+6pCa48B1AI78lD+/i/dLgpw4MwfnsSpZo0Ds8wzzk=
 github.com/sagernet/sing-shadowsocks v0.2.0 h1:ILDWL7pwWfkPLEbviE/MyCgfjaBmJY/JVVY+5jhSb58=
 github.com/sagernet/sing-shadowsocks v0.2.0/go.mod h1:ysYzszRLpNzJSorvlWRMuzU6Vchsp7sd52q+JNY4axw=
 github.com/sagernet/sing-shadowtls v0.1.0 h1:05MYce8aR5xfKIn+y7xRFsdKhKt44QZTSEQW+lG5IWQ=
 github.com/sagernet/sing-shadowtls v0.1.0/go.mod h1:Kn1VUIprdkwCgkS6SXYaLmIpKzQbqBIKJBMY+RvBhYc=
-github.com/sagernet/sing-tun v0.1.3-0.20230323073325-35d565af6515 h1:r25BJqn3o34g+bDdhoRU65zimKPfGCTv7nHuysyJojo=
-github.com/sagernet/sing-tun v0.1.3-0.20230323073325-35d565af6515/go.mod h1:1xzFt4zJ7CzXdbgPcy7+Lsg4ypZo0ivDNZ0oQdL3zEY=
+github.com/sagernet/sing-tun v0.1.4-0.20230326080954-8848c0e4cbab h1:a9oeWuPBuIZ70qMhIIH6RrYhp886xN9jJIwsuu4ZFUo=
+github.com/sagernet/sing-tun v0.1.4-0.20230326080954-8848c0e4cbab/go.mod h1:4YxIDEkkCjGXDOTMPw1SXpLmCQUFAWuaQN250oo+928=
 github.com/sagernet/sing-vmess v0.1.3 h1:q/+tsF46dvvapL6CpQBgPHJ6nQrDUZqEtLHCbsjO7iM=
 github.com/sagernet/sing-vmess v0.1.3/go.mod h1:GVXqAHwe9U21uS+Voh4YBIrADQyE4F9v0ayGSixSQAE=
 github.com/sagernet/smux v0.0.0-20230312102458-337ec2a5af37 h1:HuE6xSwco/Xed8ajZ+coeYLmioq0Qp1/Z2zczFaV8as=
diff --git a/libcore/nb4a.go b/libcore/nb4a.go
index 0c23b1a..f99ab6f 100644
--- a/libcore/nb4a.go
+++ b/libcore/nb4a.go
@@ -1,7 +1,6 @@
 package libcore
 
 import (
-	"io"
 	"libcore/device"
 	"os"
 	"path/filepath"
@@ -62,7 +61,7 @@ func InitCore(process, cachePath, internalAssets, externalAssets string,
 		maxLogSizeKb = 50
 	}
 	neko_log.LogWriterDisable = !logEnable
-	neko_log.NB4AGuiLogWriter = iif.(io.Writer)
+	// neko_log.NB4AGuiLogWriter = iif.(io.Writer)
 	neko_log.SetupLog(int(maxLogSizeKb)*1024, filepath.Join(cachePath, "neko.log"))
 
 	// Set up some component
diff --git a/libcore/platform_java.go b/libcore/platform_java.go
index e49363f..c11151c 100644
--- a/libcore/platform_java.go
+++ b/libcore/platform_java.go
@@ -5,12 +5,7 @@ var intfNB4A NB4AInterface
 
 var useProcfs bool
 
-type NB4AGuiLogWriter interface {
-	Write(p []byte) (n int, err error)
-}
-
 type NB4AInterface interface {
-	NB4AGuiLogWriter
 	UseOfficialAssets() bool
 }